Aircraft controller delights parasite (8)
I believe the answer is:
joystick
'aircraft controller' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'delights parasite' is the wordplay.
'delights' becomes 'joys' (I've seen this in another clue).
'parasite' becomes 'tick' (type of parasite).
'joys'+'tick'='JOYSTICK'
Can you help me to learn more?
(Other definitions for joystick that I've seen before include "girl's to click" , "Flight control lever" , "Pilot's manual control" , "Aircraft's control lever" , "Manual computer game gadget" .)